| 摘要 |
The present invention relates to a linearisation method and signal processing device for reducing intermodulation distortions by extracting harmonic components generated from first and second carrier signals with different carrier frequencies, which are input into two first non-linear stages ( 11, 12 ). The harmonic components may be generated by the two first non-linear stages ( 11, 12 ) or by two additional harmonic generating elements (NE 1 , NE 2 ). The extracted harmonic components are phase and/or amplitude adjusted and mixed with harmonic components generated in a second non-linear stage ( 4 ) to thereby reduce harmonic components so as to achieve a linear output waveform. Thus, an intermodulation distortion suppression can be achieved over the entire operating bandwidth, wherein no phase coherency of the two carrier signals is required.
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